Exercise device

ABSTRACT

The present invention provides an exercise machine for developing the chest muscles while maintaining correct biomechanical posture and joint movement for the user, thereby maximizing efficiency and safety. The present invention includes a track in which two handles independently slide. The handles are interconnected to either an end bridge or a middle bridge by one or more tensioning elements that are configured to provide gradual and progressively increased resistance as a distance between the interconnected components increases.

RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.13/915,567, filed on Jun. 11, 2013, and titled EXERCISE DEVICE, whichclaims priority to U.S. Provisional Patent Application Ser. No.61/659,230, filed Jun. 13, 2012 and titled MULTIPLE CHEST/PUSHUP MACHINEPROVIDING FULL CONTRACTION ARC WITH PROGRESSIVE ONE-WAY RESISTANCE, andU.S. Provisional Patent Application Ser. No. 61/789,507, filed Mar. 15,2013, and titled MULTIPLE CHEST/PUSHUP MACHINE PROVIDING FULLCONTRACTION ARC WITH PROGRESSIVE ONE-WAY RESISTANCE, each of which isincorporated herein in their entireties.

TECHNICAL FIELD

The present invention relates to exercise machines. More particularly,the present invention relates to an exercise machine that combines themotions of a pushup with a dumbbell fly with the user in a prone orpushup position. The exercise machine comprises various features toensure proper biomechanical motion of the user thereby preventing injuryand maximizing efficiency in muscular development.

BACKGROUND

All skeletal muscles throughout the human body comprise an anatomicalarc structure. See Faith and Fat Loss by Ron Williams, RTW PublishingInternational; First edition, 2009, incorporated herein in its entirety.This arc structure permits the muscle to contract and relax to achievedesired skeletal movements. The majority of muscles in the body areattached or anchored by ligaments and tendons to one or more stableskeletal bones and one or more mobile bones. The mobile bones are movedrelative to the stable skeletal bones as the muscle is contracted andextended.

The chest muscles (i.e. pectoralis major and minor) are connected to thesternum, the clavicle, and the upper humerus, thereby forming an arcstructure for these muscles. The chest muscles are contracted andextended to move the mobile, upper humerus bone with respect to thestable positions of the sternum and clavicle bones. The ball and socketanatomy of the shoulder joint comprises an extensive range of motionwhich permits medial and lateral rotation of the humerus. The chestmuscles are contracted as the humerus adducts and rotates medially orinternally towards the sternum. Conversely, the chest muscles areextended or relaxed as the humerus abducts and rotates laterally oroutwardly away from the sternum. Based on this anatomy, maximum chestdevelopment is achieved when the chest muscles are optimally contractedand extended as part of a weight training activity. Maximum chestdevelopment is further achieved when weight training activities accountfor, and utilize the anatomical arc structure of the chest muscles.

Weight training or weight lifting is a common type of strength trainingfor developing the strength and size of skeletal muscles. Weighttraining uses the weight force of gravity to oppose the force generatedby muscle through concentric or eccentric contraction. Weight traininguses a variety of specialized equipment to target specific muscle groupsand types of movement.

Weight training may be performed using various types of equipment. Insome instances, weight training is performed using free-weights. Afree-weight can be classified as any object or device that can be movedfreely in three-dimensional space. Examples of common free-weightsinclude dumbbells, barbells, high/low or adjustable pulley systems, latpull-down and low row devices, medicine balls, kettle bells, ankleweights, and the human body. In reality, any object that is free to movein three-dimensional space that is not fixed to any specific set of axiscan be considered a free-weight.

Weight training may also be performed using an exercise machine. Unlikefree-weights, an exercise machine is designed to limit the biomechanicalmotion of a portion of a user's body to one or two-dimensions. In thisway, the exercise machine may focus the resistance and efforts of theuser to an isolated muscle, or group of muscles.

Exercise machines use gravity, friction, tension, compression, and/orhydraulic forces to provide isolated resistance to the user. Exercisemachines further provide optimized biomechanical movement and resistancefor the user's body by incorporating various combinations of cables,cams, springs, elastomeric bands, hydraulic cylinders, levers, andpulleys into the machine's design. Exercise machine are thusspecifically designed to provide exact, repeatable biomechanical motionsthat are calculated to optimize desired muscular development. In theory,any user that performs weight training on an exercise machine willachieve the muscular development for which the exercise machine wasspecifically designed.

Despite the general benefits of exercise machines, currently availabledevices have a number of shortcomings that result in less effectivemuscular development and potential joint and muscular injury to theuser. For example, some exercise machines fail to consider and providecorrect anatomical joint motion for the user. Some machines further failto consider the structural anatomy of the targeted muscle group tooptimally contract and extend the muscles for maximum efficiency anddevelopment.

As a specific example, currently available exercise machines fordeveloping the chest muscles fail to consider and address the correctanatomical joint motion of the shoulder and torso. This failure indesign results in muscle sheering as the user is required to apply orresist a force for which the targeted muscle group or the correspondingjoints are not properly aligned. Muscle sheering may cause tissuescaring, tearing of the muscle tissue, and/or injury to the joint,tendons, and ligaments. The resultant pain and inflammation associatedwith these types of injuries may result in decreased physical ability ofthe user, as well as arthritis. These types of injuries may also causeor exacerbate poor posture of the user. In response to the pain, theuser is forced to compromise their form and body position therebyreducing the effectiveness of the exercise, and potentially leading toadditional and/or long-term injuries.

Thus, while exercise machines for developing the skeletal muscles areavailable, challenges still exist. Accordingly, there is a need in theart for an improved exercise machine that overcomes the currentchallenges. Such a device is disclosed herein.

BRIEF SUMMARY OF THE INVENTION

The present invention relates to exercise machines. More particularly,the present invention relates to an exercise machine that combines themotions of a pushup with a dumbbell fly with the user in a prone orpushup position. The exercise machine comprises various features toensure proper biomechanical motion of the user thereby preventing injuryand maximizing efficiency in muscular development.

Some implementations of the present invention include an exercisemachine that combines the motions of a pushup with a dumbbell fly todevelop the user's chest muscles. In some instances, the exercisemachine is used from a prone or pushup position, whereby the exercisemachine is placed on the floor at a position generally beneath theuser's chest. The exercise machine comprises a track or rail on which isslidably mounted a pair of platforms, each platform comprising a handle.The track is oriented beneath the user such that the platforms movelaterally and medially along the track relative to the median sagittalplane of the user's body when in use. In some instances, the trackfurther includes a central bridge which divides the track into a righthalf and a left half. The track may further include a right end bridgeand a left end bridge which cap the right and left ends of the track,respectively. In some instances, the left platform is retained in theleft half by the presence of the central bridge and the left end bridge.Similarly, the right platform is retained in the right half by thepresence of the central bridge and the right end bridge.

Some implementations of the present invention further comprise one ormore tension elements that increase the resistance of the medial and/orproximal sliding motions of the left and right handles within theirrespective sides. In some instances, the tension element comprises anelastomeric band having a first end that is attached to the platform anda second end that is attached to the handle's end bridge. In theseinstances, the resistance of the medial motion is increased as tensionis applied to the tension element by sliding the platform medially. Inother instances, the tension element comprises an elastomeric bandhaving a first end that is attached to the platform and a second endthat is attached to the middle bridge. In these instances, theresistance of the lateral motion is increased as tension is applied tothe tension element by sliding the platform laterally. Further, in someinstances a first tension element is coupled to the platform and therespective end bridge, and a second tension element is further coupledto the platform and the middle bridge, thereby increasing the resistanceof the medial and proximal sliding motions of the platform.

In some instances, the end bridges are laterally and medially adjustablerelative to the middle bridge, thereby setting and limiting a maximumdistance between the platform and handles. In some implementations ofthe present invention, the left and right end bridges are adjustedmedially on the track to achieve a user-specific, maximum distancebetween the handles. This maximum distance between the handles providesanatomically and biomechanically correct motion of the user's shoulderjoint throughout the user's motion on the exercise machine, therebymaximizing the efficiency and safety of the exercise for the user.

Some implementations of the present invention further comprise anexercise machine having a first platform that slides medially andlaterally independent of the medial and lateral sliding motions of asecond platform. As such, the user's independent movement of eachplatform isolates the effectiveness of the exercise to the user's leftand right muscle groups, respectively. This feature further prevents theuser from relying predominantly on their dominant side to complete theexercise.

In some instances, the present invention further includes a method formaximizing the efficiency and safety of muscle development while usingthe exercise machine disclosed herein. For example, in some instances amethod is provided having a first step for adjusting the left and rightend bridges to set a maximum distance between the handles, wherein themaximum distance between the handles is equal to a distance between thecreases of the user's elbows when the user is in the prone position andthe elbows are bent to approximately 90°. The method further includes astep for grasping the handles and sliding the platforms laterally toprovide the maximum distance between the handles. The user then bendstheir elbows to lower their chest towards the exercise machine untiltheir elbows are bent to approximately 90° (i.e., the power position).The user then extends their arms, thereby raising their chest to astarting position. The user then adducts and rotates their humerimedially while maintaining the starting position. With the user's humeriadducted and rotated medially, the user then slides the left and righthandles medially or inward towards the middle bridge. The user thenreturns the handles to the maximum distance position while abducting androtating the user's humeri laterally, thereby returning the user to thestarting position.

In other instances, the exercise machine of the present invention may beoriented and positioned by the user to provide resistance weighttraining to the user's abdomen, deltoids, inner thighs, outer thighs,biceps, and triceps.

DESCRIPTION OF THE DRAWINGS

It will be appreciated by those of ordinary skill in the art that thevarious drawings are for illustrative purposes only. The nature of thepresent invention, as well as other embodiments of the presentinvention, may be more clearly understood by reference to the followingdetailed description of the invention, to the appended claims, and tothe several drawings.

FIG. 1 is a perspective view of an exercise machine in accordance with arepresentative embodiment of the present invention.

FIG. 2 is a detailed perspective view of the exercise machine of FIG. 1in accordance with a representative embodiment of the present invention.

FIG. 3A is a top plan view of an exercise machine in accordance with arepresentative embodiment of the present invention.

FIG. 3B is a top plan view of an exercise machine demonstrating amaximum distance between the handles of the device in accordance with arepresentative embodiment of the present invention.

FIG. 4 is a detailed cross-section view of an end bridge and platform ofan exercise machine in accordance with a representative embodiment ofthe present invention.

FIG. 5 is a top plan view of an arched exercise machine in accordancewith a representative embodiment of the present invention.

FIG. 6, shown in parts A and B, shows detailed cross-section views of aplatform and swivel handle of an exercise machine in accordance with arepresentative embodiment of the present invention.

FIG. 7, shown in parts A and B, shows a top plan view and cross-sectionend view of an exercise machine in accordance with a representativeembodiment of the present invention.

FIG. 8, shown in parts A-C, shows partial cross-section views ofexercise machines in accordance with various representative embodimentsof the present invention.

FIG. 9 shows a cross-section end view of an exercise machine inaccordance with a representative embodiment of the present invention.

FIG. 10 is a flowchart providing a method for using an exercise machineto maximize efficiency in muscle development in accordance with arepresentative embodiment of the present invention.

FIG. 11, shown in parts A and B, shows plan front views of an exercisemachine being used in an alternative orientation to exercise the lateralhips, gluteus, and inner thighs of the user in accordance with arepresentative embodiment of the present invention.

FIG. 12, shown in parts A and B, shows plan side views of an exercisemachine being used in an alternative orientation to exercise the bicepsand triceps of the user in accordance with a representative embodimentof the present invention.

FIG. 13 shows a plan side view of an exercise machine being used toexercise the abdominal muscles of the user in accordance with arepresentative embodiment of the present invention.

DETAILED DESCRIPTION

The present invention relates to exercise machines. More particularly,the present invention relates to an exercise machine that combines themotions of a pushup with a dumbbell fly with the user in a prone orpushup position. The exercise machine comprises various features toensure proper biomechanical motion of the user thereby preventing injuryand maximizing efficiency in muscular development. The presentdisclosure further relates to apparatuses, systems, and methods relatedto exercising the muscles of the chest, shoulder and triceps. It will beappreciated by those skilled in the art that the embodiments hereindescribed, while illustrating certain embodiments, are not intended toso limit this disclosure or the scope of the appended claims. Thoseskilled in the art will also understand that various combinations ormodifications of the embodiments presented herein can be made withoutdeparting from the scope of this disclosure.

Definitions

As used herein, the term “arc structure” is understood to describe theanatomical structure of skeletal muscles within the human body. Inparticular, arc structure describes the orientation of muscles tissue inthe body which results from a portion of the muscle being attached to astable bone, and another portion of the muscle being attached to amobile bone. Maximum muscle development is achieved when resistance toand movement of a muscle group utilizes the arc structure of that musclegroup.

As used herein, the term “biomechanically correct” is understood todescribe a condition or motion where the natural, anatomical movement ofthe muscles, joints, arc structure, bone structure, and posture of theuser is maintained during the fulfillment of an exercise.

As used herein, the terms “prone position” or “pushup position” areunderstood to describe a position of the user's body when using anexercise machine disclosed herein, wherein the user's body is supportedabove the ground in a generally horizontal position by the user's handsand toes which are in contact with the ground. These terms may alsodescribe a position of the user's body wherein the user's body issupported above the ground in a generally horizontal position by theuser's hands and knees which are in contact with the ground.

Some embodiments of the present invention provide an exercise machineconfigured to combine several exercise movements into a single device.In particular, some exercise machines of the present invention combinethe movements of a bench press, dumbbell press, cable crossovers, flyes,Pec Deck, and pushups into a single device. The exercise machines of thepresent invention further provide various adjustable components wherebythe user may fit the machine to their individual anatomy, therebyachieving biomechanically correct movement and resistance to theirisolated muscle groups. Thus, embodiments in accordance with the presentdisclosure are biomechanically correct to facilitate maximumdevelopment, comfort, safety, and enjoyment for the user.

Some embodiments in accordance with the present disclosure provide anexercise machine that is safe for use. Specifically, some exercisemachines of the present invention provide resistance or workload that isconsistent, gradual, and progressive, thereby allowing the body to adaptas it moves through the range of motion. The gradual increase of tensioneliminates jerky and ballistic movements which may result in injury.Also, the resistance provided by the exercise machine is applied equallyand independently to both sides of the user's body. As such, each sideof the user's body is required to carry its own workload, thusincreasing the effectiveness of workout and muscle development.

Some embodiments in accordance with the present disclosure furtherprovide an exercise machine that maximizes effectiveness to the user.Some designs of the present invention provide full range of motion forthe user, whereby both arms of the user are required to push or pullagainst a resistance, thereby optimally contracting the muscles of thechest, shoulders, and triceps. The exercise machine further providesbiomechanically correct posture to the user throughout the user'smovements on the machine. In some instances, the exercise machine isconfigured to flow with the structures of the user's body withoutcreating discomfort or awkward movements. The exercise machine is thusconfigured to accommodate the joint structure, joint motion, musculararc structure, and posture of the user to maximize efficiency andcomfort.

The embodiments of the present invention are further designed toeliminate friction in each movement of the exercise machine. Thus, thepresent invention provides the user with smooth and comfortabletransitions in the movements of the machine. Further, the exercisemachines of the present invention comprise a simple construction andlayout that is easily and readily understood by the user. Thus, a usermay easily and accurately perform exercise movements on the machine andachieve the desired results.

Referring now to FIGS. 1 and 2, an exercise machine 10 is shown.Exercise machine 10 comprises a track 20 having a first end 22, a secondend 24, and a middle extending therebetween. Track 20 may comprise anymaterial or combination of materials that are compatible for use in anexercise machine. For example, in some embodiments track 20 comprises anextruded metallic material, such as aluminum or steel. In otherembodiments, track 20 comprises an injection molded polymer material,such as polycarbonate or polypropylene. Further still, in someembodiments track 20 comprises a composite material.

Track 20 may comprise any length, width, and/or height as may bedesired. Track 20 may also comprise any cross-sectional shape or designas may be desired. In some instances, track 20 comprises a U-shaped,cross-sectional profile forming a longitudinal channel 26 between firstand second ends 22 and 24. In some instances, channel 26 comprises aninner base surface 28 and sidewalls 30. Sidewalls 30 may further includea lip 32 that reduces a width of the opening of channel 26. In someinstances, lip 32 is configured to engage with, and thereby retain acomponent within channel 26, as discussed below.

In some embodiments, first and second ends 22 and 24 further comprise anend cap 40. End cap 40 is configured to close first and second ends 22and 24 of channel 26. In some embodiments, end cap 40 comprises the samematerial as track 20. In other embodiments, end cap 40 comprises aslip-resistant material configured to increase friction between track 20and a surface on which track 20 is supported. For example, in someembodiments end cap 40 comprises a rubber polymer material.

In some instances, exercise machine 10 further comprises a middle bridge50. Middle bridge 50 is secured within channel 26 at a central positionbetween first and second ends 22 and 24. In some embodiments, middlebridge 50 is immovable. In other embodiments, middle bridge 50 may beadjusted within channel 26, as may be desired.

Middle bridge 50 may comprise any material or combination of materialsthat is compatible for use in an exercise machine. In some instances,middle bridge 50 comprises a rigid material that is capable ofwithstanding pulling forces during use of the machine. Middle bridge 50further comprises one or more notches 52. Notches 52 are configured toselectively receive one or more tensioning elements, such as anelastomeric band, which is discussed in detail below.

In some embodiments, exercise machine 10 further comprises a first endbridge 60 and a second end bridge 70. End bridges 60 and 70 are slidablymounted within channel 26 and further include notches 62 and 72,respectively. As with notches 52, notches 62 and 72 are also configuredto selectively receive one or more tensioning elements, as may bedesired.

In some instances, end bridges 60 and 70 have an outer surface that isshaped and configured to compatibly seat against end caps 40. In someembodiments, end bridges 60 and 70 are further configured and capable ofbeing slid within channel 26 between cap 40 and middle bridge 50. Endbridges 60 and 70 may further be configured to be selectively securedwithin channel 26 at any desired location between cap 40 and middlebridge 50. For example, in some embodiments end bridges 60 and 70comprise a set screw that can be tightened to prevent movement of endbridges 60 and 70 within channel 26. End bridges 60 and 70 may furtherinclude other means for selectively securing their positions withinchannel 26, as is discussed below in connection with FIG. 4.

Exercise machine 10 further comprises a first platform 80 and a secondplatform 90. First and second platforms 80 and 90 are slidablypositioned within channel 26 and are capable of freely moving withinchannel 26 between their respective end bridge (60, 70) and middlebridge 50. First and second platforms 80 and 90 each further comprise ahandle 82 and 92. Handles 82 and 92 are generally positioned abovechannel 26 and are configured to support a user's hands when usingexercise machine 10. The platforms and handles of the present inventionmay comprise any material or combination of materials disclosed herein.In some instances, the platforms and handles of exercise machine 10comprise a rigid material that is capable of supporting the weight of auser during use of the device.

In some instances, the platform and handle comprise a single, monolithicunit or structure. In other instances, the handle is secured to theplatform via one or more fasteners. Handle 82 or 92 may also berotatably coupled to their respective platform, as is discussed below inconnection with FIGS. 6A and 6B.

Platforms 80 and 90 further comprise one or more notches 84 and 94 whichare configured to selectively receive one or more tensioning elements.In some instances, an outer edge 86 of platform 80 comprises a first setof notches, and an inner edge 88 of platform 80 comprises a second setof notches, wherein the first set of notches is aligned with notches 62of end bridge 60, and wherein the second set of notches is aligned withnotches 52 of middle bridge 50. The same modifications may be providedfor platform 90. The aligned notches of the respective components arethus used in combination to support one or more tensioning elements,thereby providing resistance to the user of the machine 10.

For example, in some embodiments a first tensioning element is coupledbetween platform 80 and end bridge 60 via notches 84 and 62. In otherembodiments, a second tensioning element is coupled between platform 90and end bridge 70 via notches 94 and 72. Alternatively, a firsttensioning device may be coupled between platform 80 and middle bridge50 via notches 84 and 52, and a second tensioning device may be coupledbetween platform 90 and middle bridge 50 via notches 94 and 52. Thevarious notches of the present invention may be configured to receive asingle tensioning element, or may be configured to receive a pluralityof tensioning elements.

In some instances, the tensioning elements comprise an elastic cord orelastomeric band having enlarged ends that are retained by the notches.A user may vary the tension between two components by either 1)adjusting the number of tensioning elements interconnecting the twocomponents, 2) selecting tensioning elements having greater or lessertensioning properties, or 3) adjusting the number of tensioning elementsand selecting tensioning elements having greater of lesser tensioningproperties. In some embodiments, the tensioning properties of thetensioning elements provide gradual and progressive resistance betweenthe two interconnected components as the distance between the componentsincreases. Thus, depending upon which components are interconnected viathe tensioning elements, exercise machine 10 may provide medial and/orlateral resistance to the user. In some instances, platforms 80 and 90are interconnected to both middle bridge 50, and end bridges 60 and 70via a plurality of tensioning elements, thereby providing both medialand lateral resistance to the user.

In some embodiments, an extension 83 of handle 82 or platform 80overlaps sidewall 30 and onto lip 32, as shown. This extension 83 may beprovided to assist in maintaining proper placement and alignment ofplatform 80 when sliding within channel 26. Extension 83 may also besupported by sidewall 30 such that the weight of the user on handle 82is transferred to sidewall 30 as platform 80 slides within channel 26.In other embodiments, extension 83 is provided merely as a cosmeticfeature.

In some instances, platforms 80 and 90 further comprise a frictionreducing material or device 100 to assist the platform in sliding withinchannel 26. Generally, this material or device 100 reduces or eliminatesfriction between platforms 80 and 90 and channel 26, thereby providingthe platforms a smooth sliding motion. In some instances, frictionreducing device 100 comprises one or more wheels. In other instances,friction reducing device 100 comprises a bearing. Friction reducingdevice 100 may further comprise a low friction coating or material, suchas polytetrafluoroethylene. In some embodiments, channel 26 furthercomprises a friction reducing material.

Referring now to FIG. 2, a detailed view of exercise device 10 is shown.In some embodiments, end bridge 70 may be selectively slid and securedat any position between end cap 40 and middle bridge 50. End bridge 70further comprises one or more notches that is configured to selectivelyreceive one or more tensioning elements 110. As discussed previously,tensioning element 110 may comprise any material or structure that iscompatible for use in the present system. In some embodiments,tensioning element 110 comprises an elastomeric band having a terminalends that are wider than notches 72 and 96, and further having a middlesection that is narrower than notches 72 and 96. As such, the middlesection of tensioning element 110 is seated into notches 72 and 96 withthe element's terminal ends being positioned outside of the notches.Tension between platform 90 and end bridge 70 gradually increases asplatform 90 is slid medially inward towards middle bridge 50.

Referring now to FIG. 3A, a top view of a representative embodiment ofan exercise machine 10 is shown. In some embodiments, track 20 furthercomprises a plurality of holes or detents 120 that are configured toreceive a pin or set screw of end bridges 60 and 70, thereby retaining aposition of end bridges 60 or 70 within channel 26. Exercise machine mayalternatively use any system or device to retain a desired position ofend bridges 60 and 70 within channel 26.

In some embodiments, end bridges 60 and 70 are adjusted by the user toprovide a maximum distance 122 between handles 82 and 92 when platforms80 and 90 are seated against their respective end bridges. Maximumdistance 122 is determined based upon the specific anatomy of the user.In particular, maximum distance 122 is approximately equal to thedistance between the user's elbow creases when the user is in a proneposition with their elbows bent at approximately 90°. When properly set,maximum distance 122 ensures that exercise machine 10 is configured toprovide the user with biomechanically correct movements and motionswhile using the machine, thereby increasing efficiency and decreasingthe risk for injury.

Generally, exercise machine 10 comprises means for selectively adjustingthe position of end bridges 60 and 70 within channel 26. In someinstances, end bridge 70 comprises a spring loaded pin or button 74 thatis located on the bottom surface of the end bridge and extendsdownwardly beyond the bottom surface, as shown in FIG. 4. Button 74 isbiased outwardly by spring 76 such that button 74 remains engaged withhole or detent 120. Once engaged, movement of end bridge 70 relative totrack 20 is prevented. End bridge 70 may be moved by depressing 130button 74 while simultaneously sliding 132 end bridge 70 within channel26 to a desired location. Button 74 is again biased into a new hole 120when proper alignment between button 74 and the hole is achieved.

Referring now to FIG. 5, an exercise machine 10 is shown having anarched track 20 and channel 26. The arched configuration of track 20provides the user with biomechanically correct movement to contract andexpand different regions of the chest muscles. For example, the upperpectoral muscles are maximally contracted and extended when the usermounts exercise machine 10 from side A and slides handles 82 and 92inwardly towards middle bridge 50. Conversely, the lower pectoralmuscles are maximally contracted and extend when the user mountsexercise machine 10 from side B and slides handles 82 and 92 inwardlytowards middle bridge 50. Thus, in some embodiments an exercise machineis provided having a non-linear track configuration to provideadditional biomechanically correct movements for the user.

In some instances, exercise machine 10 further comprises a handle 82that is rotatably coupled to platform 80 via a swivel 150, as shown inFIGS. 6A and 6B. Thus, handle 82 may be rotated relative to thestationary position of platform 80. For example, in some embodimentshandle 82 is rotated to be parallel to the length of channel 26, asshown in FIG. 6A. In other embodiments, handle 82 is rotated 90° to beperpendicular to the length of channel 26, as shown in FIG. 6B. In someinstances, handle 82 comprises a set pen or other means for locking adesired rotated position of handle 82. In other instances, handle 82 mayfreely rotate throughout the movement of platform 80 within channel 26.

Referring now to FIGS. 7A and 7B, in some embodiments platform 80 isremovably and rotatably seated into channel 26. Channel 26 may beconfigured with straight sidewalls 30 and without a lip, therebypermitting platform 80 to be dropped into and lifted out of channel 26,as desired. Platform 80 similarly comprises straight sidewalls and anoverall width that is slightly less than the inner diameter of channel26. Platform 80 further comprises a friction reducing material 100 thatis interposedly positioned between platform 80 and channel 26. In someinstances, additional friction reducing material is applied to at leastone of sidewall 30, and the sidewall of platform 80. As such, platform80 is configured to slide within channel 26 between middle bridge 50 andend cap 40. Platform 80 is further configured to rotate freely withinchannel 26.

In some instances, exercise machine 10 further comprises a plurality ofnotches 84 and 94 arranged around the perimeter of platform 80 and/or90. In some embodiments, the plurality of notches 84 and 94 are arrangedaround the entire perimeter of platform 80 and/or 90. In otherembodiments, the plurality of notches are arranged around the perimeterat desired degrees of rotation, such as 0°, 45°, 90°, 135°, 180°, 220°,and 265°. The placement of these notches permits the user to attachtensioning element 110 between the platform and end bridge or middlebridge with handle 82 or 92 at any desired rotational position. Thisconfiguration further permits the user to slightly adjust the rotationalposition of handles 82 and 92 throughout the contraction and extensionmotions of the machine, thus providing the user with biomechanicallycorrect movement.

Referring now to FIGS. 8A-8C, various configurations of platform 80 andtrack 20 are provided. In some instances, track 20 comprises a lip 32that extends inwardly into channel 26 and interconnects with platform 80and/or handle 82. The intersection between platform 80 and track 20further comprises an interaction between extension 83 and an outersurface of lip 32. In this configuration, removal of platform 80 fromtrack 20 is not possible unless end cap 40 and end bridge 60 are removedfrom track 20, thereby opening an end of track 20.

In some instances, channel 26 and the inner surface of sidewall 30further comprises a friction reducing material or coating 100. Material100 provides a low-friction barrier between platform 80 and channel 26,thereby providing smooth movement of platform 80 therein. In otherinstances, material 100 is alternatively applied to the undersurface andperimeter sidewall surfaces of platform 80. As such, material 100 isagain interposedly positioned between platform 80 and channel 26.

Further still, in some instances a first material 100 is applied to theundersurface of platform 80, and a second material 102 is applied tochannel 26, as shown in FIG. 8B. A third material 104 may be applied tothe outer surface of lip 32 so as to be interposed between lip 32 andextension 83 of platform 80. One having skill in the art will appreciatethat material 100 may be applied to any number of surfaces to reducefriction between platform 80 and track 20, as disclosed herein.

With reference to FIG. 8C, in some embodiments platform 80 comprises aset of wheels 106. Wheels 106 are configured to reduce friction betweenplatform 80 and channel 26. In some embodiments, platform 80 furthercomprises a retention groove 81 into which lip 32 is partially inserted.Retention groove 81 prevents platform 80 from being removed from channel26. Platform 80, channel 26, lip 32, and/or retention groove 81 mayadditionally comprise one or more friction reducing materials, withinthe spirit of the present disclosure.

In some embodiments, exercise machine 10 comprises a rail 200 in placeof a track, as shown in FIG. 9. Thus, in some embodiments platform 80comprises a C-shaped channel 85 that is configured to compatibly receivea T-shaped extension 285 of rail 200. Channel 85 may further comprise afriction reducing device, material, and/or coating to reduce frictionbetween platform 80 and rail 200. For example, in some embodimentschannel 85 comprises a plurality of ball bearings 87. In otherinstances, extension 285 comprises a friction reducing material and/orcoating. In some instances, rail 200 further comprises a base 220 havingan extended width configured to increase the stability of exercisemachine 10.

Referring now to FIG. 10, a method for maximizing the efficiency andsafety of muscle development is shown. This method may be followed whenusing exercise device 10. Alternatively, this method may be provided asinstruction when teaching a user how to properly use exercise device 10.

In some embodiments, a method for maximizing the efficiency and safetyof muscle development includes a first step 300 of adjusting the endbridges of the exercise machine to set the correct maximum distancebetween the handles of the device. This step sets the machine to providea personal power position for the user. This step may further include asub-step for determining the correct maximum distance by measuring thedistance between the user's elbow creases when bent to approximately 90°while in the prone position. The user then grasps the handles of theexercise machine while in the prone position, with their elbows fullyextended and the handles separated at the maximum distance (at step302). This may be referred to as the starting position. The user thenbends their elbows to lower their chest towards the middle bridge of themachine to a maximum depth (at step 304). As the user lowers theirchest, the user's humeri are abducted and rotated laterally, therebyopening their chest to achieve a full stretch. The user then extendstheir arms, thereby straightening their elbows and returning returns tothe starting position (at step 306).

At this point the user adducts and rotates their humeri medially whilemaintaining the starting position (at step 308). While holding theadducted and rotated position of the humeri, the user slides the handlesmedially inward towards the middle bridge (at step 310). The user thenreturns the handles to the maximum distance while simultaneouslyabducting and rotating their humeri laterally (at step 312). Steps 302to 312 may be referred to as one complete repetition.

When performing the steps of the method shown in FIG. 10, steps 302 to312 are performed as a single continuous motion. In some embodiments,the resistance provided by the tensioning elements is applied in asingle horizontal direction. However, the exercise takes place in twodirections, namely, vertical and horizontal directions. Thus, theexercise according to the method shown in FIG. 10 may be described ashaving two vectors which creates two motions or two types of resistancein one positive fluid movement. The first or vertical movement is muchlike a pushup, wherein the user's arms are straight with the user'shands gripping the handles. The forearms should be generally parallel toone another during the vertical movement, i.e. the user's elbows shouldnot go inside or outside of this position. The forearms should also begenerally perpendicular or normal to the plane of the floor or surfaceon which the exercise machine is supported. At the top of the movement,or the starting position, the arms are fully extended. When the humeriare adducted and rotated medially, the chest should concave slightly.

The second or horizontal movement involves the hands being broughttogether by sliding the handles inwardly towards the middle bridge. Thearms are then returned to the starting position, thereby completing therepetition.

As user gains increased strength during the course of an exerciseprogram, the resistance of exercise machine 10 may be graduallyincreased to continue to provide an effective exercise for the user.Additional resistance may be provided by the use of additionaltensioning elements 110 which are placed into the plurality of notcheson the various components of the machine, as described above. Dependentupon the skill of the user, the exercise may be completed while beingsupported either on the knees or the toes. For the novice user, theexercise is completed with the user's knees in contact with the floorand in close proximity to the exercise machine. Increased resistance isachieved as the user increases the distance between their knees and theexercise machine.

For the advanced user, the exercise is completed with the user's bodybeing supported solely by the user's hands and toes. Elastomeric bandsor straps may further be placed across the back of the user to increaseresistance during the first or vertical movement at steps 304 and 306.For example, in some instances a middle portion of an elastomeric bandor strap is positioned across the back of the user while each end of thestrap is further secured to the exercise machine. In other instances,the middle portion of the elastomeric band or strap is positioned acrossthe back of the user while each end of the strap is held by the userwith the handle. In some embodiments, track 20 comprises one or moreloops that is configured to receive and retain the ends of theelastomeric band. In other embodiments, the additional elastomeric bandis secured beneath or around a portion of track 20. Thus, as the userraises the body during the vertical movement, the additional elastomericstraps provide increased resistance to the movement.

Referring now to FIGS. 11A and 11B, exercise machine 10 may be used inan alternative orientation to exercise the lateral hips, gluteus, andinner thighs of the user 400. For example, to exercise the lateral hipsand gluteus, a desired number of tensioning elements 110 areinterconnected between each of the platforms and middle bridge 50, asshown in FIG. 11A. The user 400 is then seated as on a stool or chair,with the knees 402 bent. Exercise machine 10 is then placed on theuser's knees 402 such that the platforms rest on the top surface of theuser's knees 402, and the handle of each platform contacts the lateralsurface of the knee. The user then moves their knees 402 laterallyoutward 420, thereby gradually and progressively increasing theresistance between the platforms and middle bridge 50.

To exercise the inner thighs, a desired number of tensioning elements110 are interconnected between each of the platforms and theirrespective end bridges, as shown in FIG. 11B. The user 400 is thenseated on a stool or chair, with knees 402 bent. Exercise machine 10 isthen placed on the user's knees 402 such that the platforms rest on thetop surface of the user's knees 402, and the handles of each platformcontacts the medial surface of the knees. Alternatively, exercisemachine 10 may be placed facing upwards on the floor and the user isseated on the floor with the knees straight and placed on the outsidesof the handles. The user then moves their knees 402 medially inward 430,thereby gradually and progressively increasing the resistance betweenthe platforms and their respective end bridges.

Referring now to FIGS. 12A and 12B, exercise machine 10 may be used inan alternative orientation to exercise the biceps and triceps of theuser 400. For example, to exercise the bicep, a desired number oftensioning elements 110 are interconnected between platform 90 andmiddle bridge 50, as shown in FIG. 12A. The opposite end of the machineis placed on the floor such that the exercise machine is in a verticalposition and the interconnected components 90 and 50 are oriented abovethe unconnected components 60 and 80. The user 400 steadies the exercisemachine 10 with one hand while grasping the handle 92 with their otherhand. The user then pulls handle 92 upwardly 440 while curling theirbicep, thereby gradually and progressively increasing the resistancebetween middle bridge 50 and platform 90.

To exercise the triceps, a desired number of tensioning elements 110 areinterconnected between platform 90 and end bridge 70, as shown in FIG.12B. The opposite end of the machine is placed on the floor such thatthe exercise machine is in a vertical position and the interconnectedcomponents 90 and 70 are oriented above the unconnected components 50,80 and 60. The user 400 steadies the exercise machine 10 with one handwhile grasping the handle 92 with the other hand. The user then pushesdownwardly 450 while extending the elbow, thereby gradually andprogressively increasing the resistance between platform 90 and endbridge 70.

Exercise machine 10 may further be used to exercise the abdominalmuscles of a user 400. First, a desired number of tensioning elements110 are interconnected between platform 90 and end bridge 70, as shownin FIG. 13. Exercise machine 10 is then laid on the floor with thehandles in an upward orientation. The user 400 kneels proximate to endcap 40 and end bridge 60, such that the interconnected components 70 and90 opposite the user and the user is generally parallel to the long axisof track 20. The user 400 reaches across middle bridge 50 and graspshandle 92 with one or both hands. The user then pulls handle 92 inwardly460 while simultaneously contracting the users abdominal muscles in anupward direction 470 to curl the abdomen, thereby gradually andprogressively increasing the resistance between platform 90 and endbridge 70.

The present invention may be embodied in other specific forms withoutdeparting from its structures, methods, or other essentialcharacteristics as broadly described herein and claimed hereinafter. Thedescribed embodiments are to be considered in all respects only asillustrative, and not restrictive. The scope of the invention is,therefore, indicated by the appended claims, rather than by theforegoing description. All changes that come within the meaning andrange of equivalency of the claims are to be embraced within theirscope.

What is claimed is:
 1. An exercise machine, comprising: a track having afirst end, a second end, and a middle interposed therebetween; a firstend bridge coupled to the first end of the track; a second end bridgecoupled to the second end of the track; a middle bridge coupled to themiddle of the track; a first platform slidably coupled to the trackbetween the middle bridge and the first end bridge; and a secondplatform slidably coupled to the track between the middle bridge and thesecond end bridge, the second platform being configured to moveindependent of the first platform.
 2. The exercise machine of claim 1,wherein the track further comprises a plurality of holes configured toselectively receive a pin of the first end bride and the second endbridge to provide a fixed position for the first and second end bridgeson the track.
 3. The exercise machine of claim 2, wherein the fixedposition of the first and second end bridges may be adjusted to increaseand decrease a distance between each end bridge and the middle bridge.4. The exercise machine of claim 1, wherein the middle bridge is securedto the track at a position approximately centered between the first andsecond end bridges.
 5. The exercise machine of claim 1, furthercomprising a first handle coupled to the first platform, and a secondhandle coupled to the second platform, the first and second handlesbeing configured to support a user's hands.
 6. The exercise machine ofclaim 5, wherein the first and second handles are rotatably coupled tothe first and second platforms, respectively.
 7. The exercise machine ofclaim 1, wherein the first and second platforms are rotatably coupled tothe track.
 8. The exercise machine of claim 1, further comprising: afirst set of notches provided on the first and second end bridges; asecond set of notches provided on the first and second platforms; and atensioning element coupled to the first and second sets of notches tointerconnect the first and second end bridges with the first and secondplatforms.
 9. The exercise machine of claim 8, wherein the tensioningelement comprises a plurality of tensioning elements
 10. The exercisemachine of claim 9, wherein the tensioning element is an elastomericband.
 11. The exercise machine of claim 8, wherein the first and secondsets of notches are each configured to receive one or more tensioningelements.
 12. The exercise machine of claim 1, further comprising: afirst set of notches provided on the first and second platforms; a notchprovided on the middle bridge; and a tensioning element coupled to thefirst set of notches and the notch to interconnect the first and secondplatforms with the middle bridge.
 13. The exercise machine of claim 12,wherein the tensioning element comprises a plurality of tensioningelements.
 14. The exercise machine of claim 12, wherein the first set ofnotches and the notch are each configured to receive one or moretensioning elements.
 15. The exercise machine of claim 1, wherein thetrack comprises a channel configured to receive and retain the first andsecond end bridges, the first and second platforms, and the middlebridge.
 16. A method of instruction for use of an exercise machineaccording to claim 1, the method comprising: setting a correct maximumdistance between a pair of handles for the exercise machine; graspingthe handles while in a starting position; performing a vertical movementby lowering a user's body, thereby abducting and rotating laterally theuser's humeri to achieve a full stretch of the user's chest; returningto the starting position; adducting and rotating medially the user'shumeri while in the starting position; performing a horizontal movementby sliding the pair of handles inwardly towards a middle bridge of theexercise machine; and returning the handles to the correct maximumdistance while simultaneously adducting and rotating laterally theuser's humeri.
 17. The method of claim 16, further comprising a step forcoupling a tensioning element between the pair of handles and a firstand second end bridge of the exercise machine.
 18. The method of claim16, further comprising a step for concaving the user's chest while thehumeri are adducted and rotated medially.
 19. The method of claim 16,further comprising a step for maintaining a parallel orientation of theuser's forearms during the vertical movement.
 20. An exercise machine,comprising: a track forming a channel and having a first end, a secondend, and a middle interposed therebetween; a middle bridge fixedlycoupled to the track at a central position; a first end cap coupled tothe first end of the track; a second end cap coupled to the second endof the track; a first end bridge adjustably coupled to the track betweenthe first end cap and the middle bridge; a second end bridge adjustablycoupled to the track between the second end cap and the middle bridge; afirst platform slidably coupled to the track between the first endbridge and the middle bridge, the first platform having a first handle;a second platform slidably coupled to the track between the second endbridge and the middle bridge, the second platform being configured toslide within the channel independently of the first platform, the secondplatform having a second handle; a first set of notches comprising aportion of the middle bridge and configured to receive a first end ofone or more tensioning elements; a second set of notches comprising aportion of the first platform and configured to receive a second end ofthe one or more tensioning elements; and a third set of notchescomprising a portion of the second platform and configured to receivethe second end of the one or more tensioning elements.